From: Tejun Heo <tj@kernel.org>
Date: Fri, 29 Nov 2013 22:19:09 +0000 (-0500)
Subject: sysfs, kernfs: implement kernfs_ns_enabled()
X-Git-Tag: v3.14-rc1~151^2~75
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac9bba031001704a2339713cc12148857eccc5e5;p=pandora-kernel.git

sysfs, kernfs: implement kernfs_ns_enabled()

fs/sysfs/symlink.c::sysfs_delete_link() tests @sd->s_flags for
SYSFS_FLAG_NS.  Let's add kernfs_ns_enabled() so that sysfs doesn't
have to test sysfs_dirent flag directly.  This makes things tidier for
kernfs proper too.

This is purely cosmetic.

v2: To avoid possible NULL deref, use noop dummy implementation which
    always returns false when !CONFIG_SYSFS.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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